Uploaded August 2025 | Updated September 2026, 2 weeks ago

---

Go to melscience.com/sBfq and use the code "SCOTT50" to get 50% off your first month!

Previous video: youtu.be/Jj6VQgw1ZvM
Previous USB-C Cable video: youtu.be/ZikvlsVDiQY

Facebook: facebook.com/greatscottlab
Twitter: twitter.com/GreatScottLab
Instagram: instagram.com/great.scott.lab
TikTok: tiktok.com/@greatscottlab
Discord: discord.gg/zuAvkAuhsY
Support me for more videos: patreon.com/GreatScott?ty=h

In this video we will have a final look at USB-C cables. I already created the "perfect" USB-C PD cable that can transfer 240W with minimal losses. But viewers asked for a High-Speed USB-C cable instead. So how hard can it be? Well, let's say shielding, twisted wires, EMI and much more will be topic of this video ;-) Let's get started!

Thanks to Mel Science for sponsoring this video!

0:00 You Dislike my USB-C Cable
2:16 Data Transfer does not work?
4:45 Shielding is IMPORTANT
6:43 Making a High-Speed USB-C Cable
9:04 Twisted Wires are IMPORTANT
10:13 Final Test & Verdict